//
//  JZVisitorView.swift
//  SwiftWeibo
//
//  Created by Stone on 16/12/5.
//  Copyright © 2016年 Stone. All rights reserved.
//

import UIKit

class JZVisitorView: UIView {

    //注册按钮
    lazy var registerButton: UIButton = UIButton.cz_textButton(
        "注册",
        fontSize: 16,
        normalColor: UIColor.orange,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")
    //登录按钮
    lazy var loginButton: UIButton = UIButton.cz_textButton(
        "登录",
        fontSize: 16,
        normalColor: UIColor.darkGray,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")

    
    //访客视图的字典信息 [imageName, message]
    var visitorInfo: [String: String]? {
        didSet{
            guard let imageName = visitorInfo?["imageName"],
                let message = visitorInfo?["message"] else {
                    return
            }
            //设置消息
            tipLabel.text = message
            //设置图像, 首页不需要设置
            if imageName == "" {
                startAnimation()
                return
            }
            
            iconView.image = UIImage(named: imageName)
            //其他控制器的访问视图不需要显示小房子
            houseInconView.isHidden = true
            maskIconView.isHidden = true
        }
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }
    
    //旋转图标动画
    func startAnimation() {
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.toValue = 2 * M_PI
        anim.repeatCount = MAXFLOAT
        anim.duration = 15
        anim.isRemovedOnCompletion = false
        //将动画添加到图层
        iconView.layer.add(anim, forKey: nil)
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
    
    //MARK: - 私有控件
    //图像视图
    lazy var iconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    
    lazy var maskIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    
    //小房子
    lazy var houseInconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    //提示标签
    lazy var tipLabel: UILabel = UILabel.cz_label(
        withText: "关注一些人, 回这里看看有什么惊喜关注一些人, 回这里看看有什么惊喜",
        fontSize: 14,
        color: UIColor.darkGray)
}


// MARK: - 设置界面
extension JZVisitorView {
    func setupUI() {
        backgroundColor = UIColor.cz_color(withRed: 237, green: 237, blue: 237)
        addSubview(iconView)
        addSubview(maskIconView)
        addSubview(houseInconView)
        addSubview(tipLabel)
        addSubview(loginButton)
        addSubview(registerButton)
        
        tipLabel.textAlignment = .center
        
        //取消autoresizing
        for v in subviews {
            v.translatesAutoresizingMaskIntoConstraints = false
        }
        
        //3.自动布局
        //1> 图像视图
        addConstraint(NSLayoutConstraint(
            item: iconView,
            attribute: .centerX,
            relatedBy: .equal,
            toItem: self,
            attribute: .centerX,
            multiplier: 1.0,
            constant: 0))
        addConstraint(NSLayoutConstraint(
            item: iconView,
            attribute: .centerY,
            relatedBy: .equal,
            toItem: self,
            attribute: .centerY,
            multiplier: 1.0,
            constant: -60))
        //2> 小房子
        addConstraint(NSLayoutConstraint(
            item: houseInconView,
            attribute: .centerX,
            relatedBy: .equal,
            toItem: self,
            attribute: .centerX,
            multiplier: 1.0,
            constant: 0))
        addConstraint(NSLayoutConstraint(
            item: houseInconView,
            attribute: .centerY,
            relatedBy: .equal,
            toItem: iconView,
            attribute: .centerY,
            multiplier: 1.0,
            constant: 0))
        
        addConstraint(NSLayoutConstraint(
            item: tipLabel,
            attribute: .centerX,
            relatedBy: .equal,
            toItem: iconView,
            attribute: .centerX,
            multiplier: 1.0,
            constant: 0))
        
        addConstraint(NSLayoutConstraint(
            item: tipLabel,
            attribute: .top,
            relatedBy: .equal,
            toItem: iconView,
            attribute: .bottom,
            multiplier: 1.0,
            constant: 20))
        
        addConstraint(NSLayoutConstraint(
            item: tipLabel,
            attribute: .width,
            relatedBy: .equal,
            toItem: nil,
            attribute: .notAnAttribute,
            multiplier: 1.0,
            constant: 236))
        //注册button
        addConstraint(NSLayoutConstraint(
            item: registerButton,
            attribute: .left,
            relatedBy: .equal,
            toItem: tipLabel,
            attribute: .left,
            multiplier: 1.0,
            constant: 0))
        addConstraint(NSLayoutConstraint(
            item: registerButton,
            attribute: .top,
            relatedBy: .equal,
            toItem: tipLabel,
            attribute: .bottom,
            multiplier: 1.0,
            constant: 20))
        
        addConstraint(NSLayoutConstraint(
            item: registerButton,
            attribute: .width,
            relatedBy: .equal,
            toItem: nil,
            attribute: .notAnAttribute,
            multiplier: 1.0,
            constant: 100))
        
        //登录button
        addConstraint(NSLayoutConstraint(
            item: loginButton,
            attribute: .right,
            relatedBy: .equal,
            toItem: tipLabel,
            attribute: .right,
            multiplier: 1.0,
            constant: 0))
        addConstraint(NSLayoutConstraint(
            item: loginButton,
            attribute: .top,
            relatedBy: .equal,
            toItem: tipLabel,
            attribute: .bottom,
            multiplier: 1.0,
            constant: 20))
        
        addConstraint(NSLayoutConstraint(
            item: loginButton,
            attribute: .width,
            relatedBy: .equal,
            toItem: registerButton,
            attribute: .width,
            multiplier: 1.0,
            constant: 0))
        
        //遮罩图像
        //对应视图
        let viewDict:[String : Any] = ["maksIconView": maskIconView, "registerButton": registerButton]
        //对应数值
        let metrics = ["spacing": -20]
        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "H:|-0-[maksIconView]-0-|",
            options: [],
            metrics: nil,
            views: viewDict))
        
        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "V:|-0-[maksIconView]-(spacing)-[registerButton]",
            options: [],
            metrics: metrics,
            views: viewDict))
        
    }
}
